Frequent failures in interaction between individuals, communities, ethnic groups, religions and nations cause harm, economic loss and conflicts at both the individual and the societal level. The goal of this community is to produce, with the help of multidisciplinary research, new knowledge on causes and consequences of misunderstandings. We can hardly expect to achieve a total elimination of communication problems, but even the slightest progress in this matter can make our planet a better place to life. We invite all researchers interested in these questions to join us.